Helm SSD pattern_ingester empty ring

[fculpo]

Describe the bug

I'm testing the Explore Logs plugin and got about 4K errors/min when enabling pattern ingester in SSD Helm on loki-write pods:

level=error ts=2024-05-28T11:00:39.949623688Z caller=tee.go:53 component=pattern-tee msg="failed to send stream to pattern ingester" err="empty ring"

The write ring is ok though:

As a result, the patterns tab in Explore Logs is not working.

To Reproduce Only added this in values:

loki: 
  pattern_ingester:
    enabled: true

The ConfigMap is correctly showing pattern_ingester as enabled

Expected behavior I could not find any more documentation on enabling Explore Logs, so I guess that enabled: true should be enough

Environment:

• Loki 3.0.0
• Grafana 11.0 with Explore Logs plugin
• Infrastructure: Kubernetes (AKS)
• Deployment tool: Tanka + Flux HelmRelease